The ARD is a power close and spring open zone damper. It has a 24 V motor used to control circulating air-in HVAC systems and is used when normally open damper is required. The ARD is typically used with Honeywell TrueZone® electronic zoning systems and others.

Honeywell Zone Damper, ARD Series, Single Blade, Push Terminal Electrical Connection, 10 s De-Energized, 30 s Energized Timing Range, 71 in-oz Torque, Steel, Galvanized, Multipoise Mounting, Power Closed, Spring Open Motor, Motor Specifications: 24 VAC at 60 Hz, 8 VA, Round Shape, 1 in-WC, 40 to 140 deg F, 10 in Length

• Features galvanized steel with single blade damper, which closes off tightly against gasket for minimal leakage
• Can be field converted when used as an independent zone or for fresh air intake
• Adjustable close position range stops
• Shipped as power closed/spring return open damper
• Male (crimped) and female (uncrimped) ends to connect to any rigid or flexible round duct
• Blade closes off tightly against gasket for minimal leakage
• Fail safe, normally open operation
• Simple, easy-to-wire, two wire installation